Simulation Analysis of Concrete Temperature and Stress by Inclined-Layer Placing Method

Article Preview

Abstract:

The water-collecting well layer of large pump station base plate is constrained by bottom and lateral, and step construction method is used. In view of the characteristics, the simulation is done to study its temperature and stress during construction. Based on a large pump station project and the structural characteristics and construction method of water-collecting well layer, the FEM model is built, and the theories of the 3D-FEM of unstable temperature field and stress field is used to carry out the numerical calculation, which can study change law and distribution of temperature and stress. The results show that the method of step construction can increase concrete cooling during construction, but the heat dissipation potential is difference in different time of day.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

578-582

Citation:

Online since:

October 2013

Authors:

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2013 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Package renewed. Concrete dam cracks, causes and prevention [J]. Water Resources and Hydropower Engineering, 1 (1990) 40-35.

Google Scholar

[2] F.W. Quan, H.S. Fang. Concrete crack prevention and control [M]. Beijing: China Railway Publishing House, (2007).

Google Scholar

[3] Q. Nai, Q.X. Gu, H.T. Yu. Cracks in concrete structures and countermeasures [M]. Beijing: Mechanical Industry Press, (2006).

Google Scholar

[4] S.W. Ji. Arch dam construction and initial operation period Cracks and crack method [D]. Hehai University, (2009).

Google Scholar

[5] Y.F. Ma. Based on degree of hydration of the concrete temperature and stress research [D]. Hehai University, (2006).

Google Scholar

[6] Zhu Bofang of mass concrete temperature stress and temperature control [M]. Beijing: China Electric Power Press, (1998).

Google Scholar